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Useful and clinically centred, mind and backbone Imaging - a identify within the educating records sequence - will give you over three hundred fascinating and well-presented situations that can assist you higher diagnose any illness of the mind and backbone. professional within the box, Dr. Girish Fatterpekar, MD makes use of a logical association all through, making referencing tough diagnoses more uncomplicated than ever earlier than. distinct discussions of state-of-the-art modalities and applied sciences continue you modern, and demanding diagnostic questions probe your wisdom of the fabric. This distinct, case-based source provides you with a good way to sharpen your diagnostic talents and research for board checks.

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Diagnosis: Hydranencephaly. Case 24 DEMOGRAPHICS/CLINICAL HISTORY The patient is an 11-month old baby girl born with righteye blindness. FINDINGS Axial T2WI (Fig. 1), sagittal T2WI (Fig. 2), and coronal T2WI (Fig. 3) demonstrate a small-caliber right optic nerve. The visualized portions of the corpus callosum and septum pellucidum are unremarkable. Diagnosis: Isolated right optic nerve hypoplasia. DISCUSSION Definition/Background Optic nerve hypoplasia (ONH) is a congenital abnormality in which there is a reduction in the number of nerve fibers projecting from ganglion cells in the retina to the lateral geniculate body.

Contrast-enhanced, axial, T1WI demonstrates a large posterior fossa with a large fourth ventricle. The cerebellar vermis is hypoplastic. An enhancing choroid plexus is seen within the fourth ventricle. Figure 2. Contrast-enhanced, sagittal, T1WI demonstrates cystic dilation of the fourth ventricle, a hypoplastic cerebellar vermis, and high position of torcula herophili. Diagnosis: Dandy-Walker malformation. Case 17 DEMOGRAPHICS/CLINICAL HISTORY The patient is a 38-year-old man with an incidental finding.

Evaluation for other midline anomalies such as agenesis of corpus callosum, vermian hypoplasia, absent anterior falx, absent septum pellucidum, septo-optic dysplasia, vascular anomalies such as duplication of the basilar artery, and presence of massa intermedia should be performed. Less Common Radiologic Manifestations Migrational anomalies and midline spinal defects have been reported. Primary Differential Diagnoses n Tubomammillary Fusion Hypothalamic Hamartoma n Glioma n Discussion of Differential Diagnoses Hypothalamic Hamartoma: Typically found between the infundibular stalk and the mammillary bodies.